"A power supply is a component that has seen little advancement since the early days of computing. Outside of increased wattage and extra fans, the power supplies of today are the exact same as those of yesteryear. However, today’s power supplies can differ greatly in quality. For those who don’t overclock, or have a slew of disk drives, a generic 350-400 watt power supply is usually just fine. However, for the niche that does overclock, power supplies are very important. Power supplies directly affect the overclocking capability of a computer. As a computer is overclocked, more current is drawn. If your particular power supply isn’t up to the job, stability is compromised. Now, what classifies a power supply as being “good” or “quality”? "

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